128263535091118 has 32 divisors (see below), whose sum is σ = 220707933032448. Its totient is φ = 54763219497600.

The previous prime is 128263535091037. The next prime is 128263535091119. The reversal of 128263535091118 is 811190535362821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128263535091119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50670171 + ... + 53141257.

It is an arithmetic number, because the mean of its divisors is an integer number (6897122907264).

Almost surely, 2^{128263535091118} is an apocalyptic number.

128263535091118 is a deficient number, since it is larger than the sum of its proper divisors (92444397941330).

128263535091118 is a wasteful number, since it uses less digits than its factorization.

128263535091118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485048.

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 128263535091118 in words is "one hundred twenty-eight trillion, two hundred sixty-three billion, five hundred thirty-five million, ninety-one thousand, one hundred eighteen".